ChkNet Function

Returns number of characters in the reception buffer of a network port.

Syntax
ChkNet ( portNumber As Integer )

Parameters

portNumber

Specify the TCP/IP port number (201 to 216).

Return Values
Number of characters received (integer).

If the port cannot receive characters, the following negative values are returned to report the current port status:

• -1: Port is open but communication has not been established
• -2: Port is used by another task
• -3: Port is not open

See Also
CloseNet, OpenNet, Read, Write

ChkNet Function Example

Integer numChars

numChars = ChkNet(201)